[Bug libfortran/25419] New: gfortran read does not take comma for default on one entry

[mast at colorado dot edu]

When there is a read statement expecting a single entry and a single
comma is entered, the read expects more input.

The test program is:

      stuff = 1
      stuff2 = 2
      write(*,'(1x,a,$)')'Enter 2 somethings: '
      read(5,*)stuff,stuff2
      write(*,'(1x,a,$)')'Enter something: '
      read(5,*)stuff
      call exit(0)
      end

[ashtray] image 205 % gfortran -o inputbug inputbug.f
[ashtray] image 206 % ./inputbug
 Enter 2 somethings: ,,
 Enter something: ,
,
/

[ashtray] image 207 %

It does not accept a , as a default entry for a single number, although two 
commas work when two numbers are expected.  Once it gets one comma it even
refuses a / until a second return is entered.

This happens on Fedora Core 4 with gcc-gfortran-4.0.2-8.fc4
and on Mac OSX 10.4 with gcc version 4.1.0 20051026 (experimental)


-- 
           Summary: gfortran read does not take comma for default on one
                    entry
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mast at colorado dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419